Task 5 (12 marks, advanced difficulty). Write Matlab code that takes as input a vector with integer entries denoting how many balls of different colours are in an urn (e. g. (1,4,3] would mean 1 red, 4 blue, 3 green; and (1,2,2, 2] would means 1 red and 2 each of blue, green, yellow, etc); and number n indicating how many balls are drawn. The procedure should simulate the random draws, and output a sequence of colours (just use integers for colours, no need to translate to text). Also provide an explanation of how your code works - you can earn marks by having a sensible high-level explanation, even if you don't have working code.